Two-Dimensional Distance and Angle Location Nanoruler Using the Surface Plasmon Resonance

2014 ◽  
Author(s):  
Wenqiang Li ◽  
Yan Zhang ◽  
Ruibo Luo ◽  
Jun Wen ◽  
Jian Wang
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Two Dimensional

scholarly journals Surface plasmon resonance in two-dimensional nanobottle arrays

2008 ◽  
Vol 16 (14) ◽  
pp. 10294 ◽  
Author(s):  
H. Iu ◽  
J. Li ◽  
H. C. Ong ◽  
Jones T. K. Wan
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Two Dimensional

Double-Wavelength Technique for Surface Plasmon Resonance Measurements:  Basic Concept and Applications for Single Sensors and Two-Dimensional Sensor Arrays

2005 ◽  
Vol 77 (8) ◽  
pp. 2393-2399 ◽  
Author(s):  
Alexander Zybin ◽  
Christian Grunwald ◽  
Vladimir M. Mirsky ◽  
Jürgen Kuhlmann ◽  
Otto S. Wolfbeis ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Basic Concept ◽  
Sensor Arrays ◽  
Two Dimensional

Real-Time Visualization Method of Surface Plasmon Resonance with Spectroscopic Attenuated Total Reflection

2009 ◽  
Vol 1182 ◽  
Author(s):  
Kensuke Murai
Keyword(s):  
Surface Plasmon Resonance ◽  
Real Time ◽  
Metal Surface ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Incident Angle ◽  
Total Reflection ◽  
Wave Number ◽  
Visualization Method ◽  
Two Dimensional

AbstractWe report the real-time visualization method of surface plasmon resonance with the spectroscopic attenuated total reflection. Recently, surface plasmon resonance (SPR) had been studied for plasmonics devices to construct faster processor in the electronic microprocessors. SPR is strong interaction between light and free electron near metal surface, which cause absorption of light due to its resonance. The behavior can be explained with Fresnel’s equation. As the wave number of light with a certain frequency is not matched with that of surface plasmon, a prism or a grating is used in order to compensate this mismatching. In the prism case, the wave number is changed by changing the incident angle to the metal surface inside the prism as ksp=n*k0sinθ, where ksp and k0 is the wave numbers of surface plasmon and incident light, respectively, n is the refractive index of the prism and θ is the incident angle to the metal surface inside the prism. Therefore, the SPR can be observed by absorption of light as functions of the wavelength and the incident angle. This resonance behavior as functions of the wavelength and the incident angle can be observed directly with a two-dimensional detector such as a CCD camera. As the two-dimensional SPR images for 50nm-thick silver films on the prism surface have been observed experimentally, they have good agreement with calculated ones. Kretchmann configuration using a glass prism and an approximately 50-nm-thick silver or gold film was often used in order to evaluate the optical constants of the film. Most of SPR signals had been measured with either angular or spectral dependence with this geometry. In the case of angular dependence, the monochromatic laser, e.g. He-Ne laser at 632.8nm, is often used for the incident light. One can measure reflection loss as a function of an incident angle in the total reflection region. Increase in the resonance angle of SPR is well known when the thin oxide film on the metal film. The two-dimensional image of SPR is called “surface plasmon spectral fingerprint”, because it can inform conditions of metal films whether they are reacted or oxidized. Many fingerprints are expected by changing the thickness of the coating layer on the silver surface. In our method, thin metal film on a prism was excited by focusing beam of white light. SPR was clearly visualized with a spectrometer equipped with a two-dimensional CCD detector in the coordination of the incident angle and the wavelength. Various metal films could be distinguished even in partially oxidized condition. This real-time SPR visualization method would be useful not only for monitoring of surface reaction but for fabricating plasmonic devices.

scholarly journals Monitoring Biomaterials with Light: Review of Surface Plasmon Resonance Biosensing Using two Dimensional Materials

2021 ◽  
Author(s):  
Parsa Yari ◽  
Homa Farmani ◽  
Ali Farmani ◽  
Amir Mosavi
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
High Sensitivity ◽  
Optical Biosensors ◽  
Two Dimensional ◽  
Plasmonic Sensors ◽  
Analysis Instrument ◽  
Two Dimensional Materials ◽  
Fiber Optical

The purpose of this paper is to present advanced techniques in optical biodevices. Moreover different configurations involving the generation of fiber optical biosensors are described. To overcome some limitations of fiber optical biosensors, plasmonic phenomena proposed. In addition novel plasmonic phenomena have broaden researcher’s horizons in new discovering in terms of technology and application. As regards there are many challenges to detect ultra-low concentration samples with high sensitivity in real time. Researchers have always made great efforts to discover more effective methods. Throughout the paper SPR and LSPR as a powerful analysis instrument are introduced. Finally surveys the current practical performances of plasmonic sensors in detection of bio target are provided. As a result these devices demonstrate great potential in identifying target analytic due to their unique optical biosensors.

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